The legality of cannabis for medical and recreational use varies by country, in terms of its possession, distribution, and cultivation, and how it can be consumed and what medical conditions it can be used for. These policies in most countries are regulated by three United Nations treaties: the 1961 Single Convention on Narcotic Drugs, the 1971 Convention on Psychotropic Substances, and the 1988 Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances. Cannabis was reclassified in 2020 to a Schedule I-only drug under the Single Convention treaty, with the schedules from strictest to least being IV, I, II, and III. As a Schedule I drug under the treaty, countries can allow the medical use of cannabis but it is considered to be an addictive drug with a serious risk of abuse.
The Misuse of Drugs Act 1975 is a New Zealand drug control law that classifies drugs into three classes, or schedules, purportedly based on their projected risk of serious harm. However, in reality, classification of drugs outside of passing laws, where the restriction has no legal power, is performed by the governor-general in conjunction with the Minister of Health, neither of whom is actually bound by law to obey this restriction.
Drug liberalization is a drug policy process of decriminalizing, legalizing, or repealing laws that prohibit the production, possession, sale, or use of prohibited drugs. Variations of drug liberalization include drug legalization, drug relegalization, and drug decriminalization. Proponents of drug liberalization may favor a regulatory regime for the production, marketing, and distribution of some or all currently illegal drugs in a manner analogous to that for alcohol, caffeine and tobacco.
The use of cannabis in New Zealand is regulated by the Misuse of Drugs Act 1975, which makes unauthorised possession of any amount of cannabis a crime. Cannabis is the fourth-most widely used recreational drug in New Zealand, after caffeine, alcohol and tobacco, and the most widely used illicit drug. In 2001 a household survey revealed that 13.4% of New Zealanders aged 15–64 used cannabis. This ranked as the ninth-highest cannabis consumption level in the world.
Cannabis in the United Kingdom is illegal for recreational use and is classified as a Class B drug. In 2004, the United Kingdom made cannabis a Class C drug with less severe penalties, but it was moved back to Class B in 2009. Medical use of cannabis, when prescribed by a registered specialist doctor, was legalised in November 2018.
Cannabis is a plant used in Australia for recreational, medicinal and industrial purposes. In 2019, 36% of Australians over the age of fourteen years had used cannabis in their lifetime and 11.6% had used cannabis in the last 12 months.
Cannabis political parties are generally single-issue parties that exist to oppose the laws against cannabis.
Cannabis Law Reform (CLEAR), formerly the Legalise Cannabis Alliance, is a United Kingdom lobby group which campaigns to end the prohibition of cannabis. The group was founded in 1997 and reformed as CLEAR in 2011. It campaigned in a number of elections until it was statutorily de-registered by the Electoral Commission in November 2013.
Cannabis in the United States Virgin Islands is legal for recreational use since January 18, 2023, under territorial law. Legislation to legalize was passed by the territorial legislature in 2022, and was signed into law on January 18. Medical use was legalized in 2019 through a bill that passed the Senate 9–4. It remains illegal under federal law.
Cannabis in Germany has been legal for recreational usage by adults in a limited capacity since 1 April 2024. As of February 2024, it has been assessed that 4.5 million Germans use cannabis.
Cannabis in Ireland is illegal for recreational purposes. Use for medical purposes requires case-by-case approval by the Minister for Health. A bill to legalise medical uses of cannabis passed second reading in Dáil Éireann in December 2016, but was rejected by the Oireachtas Health Committee in 2017.
Cannabis in Finland is illegal. The 50th chapter of the Criminal Code criminalises all dealings with illegal narcotics, including the production, import, transport, sale, possession and use of cannabis.
The list includes and details significant events that occurred in the global history of national-level implementations of, or changes made to, laws surrounding the use, sale, or production of the psychoactive drug cannabis.
Cannabis in Ukraine is legal for medical purposes.
Cannabis in the Cayman Islands has been legal for medical purposes since 2017. The use of cannabis for recreational purposes still remains prohibited.
The 2020 New Zealand cannabis referendum was a non-binding referendum held on 17 October 2020 in conjunction with the 2020 general election and a euthanasia referendum, on the question of whether to legalise the sale, use, possession and production of recreational cannabis. It was rejected by New Zealand voters. The form of the referendum was a vote for or against the proposed "Cannabis Legalisation and Control Bill". Official results were released by the Electoral Commission on 6 November 2020 with 50.7% of voters opposing the legalisation and 48.4% in support.
Cannabis in Rwanda is legal for medicinal purposes, but illegal for recreational purposes.
Cannabis is illegal in Samoa.
Abraham Gabriel Gray is an American-born New Zealand cannabis activist, politician and founder of the Whakamana Cannabis Museum, New Zealand's first and only cannabis museum. Gray was a University of Otago lecturer and tutor for over a decade before founding the museum.
A referendum took place in the Cook Islands on 1 August 2022. Voters were called upon by the government of Prime Minister Mark Brown to decide on the legalisation of medical cannabis. The referendum results are non-binding, with the Parliament elected on the same day being free to implement the policy or not.
